Proton exchange in solutions of water in nitromethane and dioxane

Literature Information

Publication Date 2002-05-29
DOI 10.1039/B109568B
Impact Factor 3.676
Authors

Nickolai M. Sergeyev, Natalia D. Sergeyeva


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Abstract

The rates of proton exchange in the reaction H2O + D2O ⇄ 2HDO have been studied in the solvents nitromethane and dioxane. For the solution in nitromethane to the upper limit of solubility of water (about 7 mol%) and in dioxane to a concentration of about 60 mol% the exchange remains rather slow. At higher concentrations the rate of exchange in dioxane increases rapidly with water concentration, indicating the promotion of the exchange via large water clusters. The isotope shift Δδ = δHDO − δH2O appears to be dependent on the concentration of water in the solvent, and an equation describing this dependence is proposed.

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Back cover

2024-01-30 Cover

DOI: 10.1039/D4SE90012J

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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